Nepean Bay Weather Forecast

    • 9
    • 14

    Possible shower

    • 7
    • 17

    Shower or two

    • 9
    • 17

    Showers

    • 9
    • 18

    Shower or two clearing

    • 5
    • 17

    Partly cloudy

    • 6
    • 16

    Mostly sunny

    • 7
    • 16

    Mostly sunny

Today 11 Jul Kangaroo Island

Partly cloudy. Medium chance of showers. Winds westerly 30 to 45 km/h decreasing to 25 to 35 km/h in the late evening.

Investigator Strait Coastal Waters

Wind
Westerly 20 to 30 knots.
Seas
2 to 3 metres.
1st Swell
Westerly 1.5 to 2.5 metres.
Weather
Partly cloudy. 60% chance of showers.
Weather Situation
A cold front moving across the southeast will continue into the Tasman Sea on Sunday as a ridge of high pressure begins to build over northern SA. A second front will pass across southeastern SA on Monday before the high begins to dominate the weather pattern across SA mid next week.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

July Temperature

Kingscote Airport (7km)

  • Lowest 7 July, 2026

    2.7 °C

  • Average July

    10.4 °C

  • Highest 9 July, 2026

    16.4 °C

Climate (2021–2026)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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